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ia64.md (divsi3): Fix algorithm.

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* config/ia64/ia64.md (divsi3): Fix algorithm.
	  (udivsi3): Ditto.
	  (setf_exp_xf): Remove '*' from name.
	* testsuite/gcc.dg/20040309-1.c: New test.

From-SVN: r79217
This commit is contained in:
Steve Ellcey 2004-03-10 00:26:31 +00:00 • committed by Steve Ellcey
parent 9acd4a03dd
commit 9aec7fb4a9
3 changed files with 35 additions and 9 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-03-09 Steve Ellcey <sje@cup.hp.com>
* config/ia64/ia64.md (divsi3): Fix algorithm.
(udivsi3): Ditto.
(setf_exp_xf): Remove '*' from name.
* testsuite/gcc.dg/20040309-1.c: New test.
2004-03-09 Ian Lance Taylor <ian@wasabisystems.com>
* system.h (SUNOS4_SHARED_LIBRARIES): Poison.

20
gcc/config/ia64/ia64.md
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@ -1840,7 +1840,7 @@
(match_operand:SI 2 "general_operand" "")))]
"TARGET_INLINE_INT_DIV"
{
rtx op1_xf, op2_xf, op0_xf, op0_di, twon34;
rtx op1_xf, op2_xf, op0_xf, op0_di, twon34, twon34_exp;
REAL_VALUE_TYPE twon34_r;
op0_xf = gen_reg_rtx (XFmode);
@ -1857,9 +1857,10 @@
expand_float (op2_xf, operands[2], 0);
/* 2^-34 */
real_2expN (&twon34_r, -34);
twon34 = CONST_DOUBLE_FROM_REAL_VALUE (twon34_r, XFmode);
twon34 = force_reg (XFmode, twon34);
twon34_exp = gen_reg_rtx (DImode);
emit_move_insn (twon34_exp, GEN_INT (65501));
twon34 = gen_reg_rtx (XFmode);
emit_insn (gen_setf_exp_xf (twon34, twon34_exp));
emit_insn (gen_divsi3_internal (op0_xf, op1_xf, op2_xf, twon34));
@ -1897,7 +1898,7 @@
(match_operand:SI 2 "general_operand" "")))]
"TARGET_INLINE_INT_DIV"
{
rtx op1_xf, op2_xf, op0_xf, op0_di, twon34;
rtx op1_xf, op2_xf, op0_xf, op0_di, twon34, twon34_exp;
REAL_VALUE_TYPE twon34_r;
op0_xf = gen_reg_rtx (XFmode);
@ -1914,9 +1915,10 @@
expand_float (op2_xf, operands[2], 1);
/* 2^-34 */
real_2expN (&twon34_r, -34);
twon34 = CONST_DOUBLE_FROM_REAL_VALUE (twon34_r, XFmode);
twon34 = force_reg (XFmode, twon34);
twon34_exp = gen_reg_rtx (DImode);
emit_move_insn (twon34_exp, GEN_INT (65501));
twon34 = gen_reg_rtx (XFmode);
emit_insn (gen_setf_exp_xf (twon34, twon34_exp));
emit_insn (gen_divsi3_internal (op0_xf, op1_xf, op2_xf, twon34));
@ -2712,7 +2714,7 @@
[(set_attr "itanium_class" "fmisc")
(set_attr "predicable" "no")])
(define_insn "*setf_exp_xf"
(define_insn "setf_exp_xf"
[(set (match_operand:XF 0 "fr_register_operand" "=f")
(unspec:XF [(match_operand:DI 1 "register_operand" "r")]
UNSPEC_SETF_EXP))]

17
gcc/testsuite/gcc.dg/20040309-1.c Normal file
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@ -0,0 +1,17 @@
/* Test integer mod on ia64. There was a bug in the inline integer
division code. */
/* { dg-do run } */
/* { dg-options "-minline-int-divide-max-throughput" { target ia64-*-* } } */
extern void abort (void);
volatile int i = 10;
volatile int j = 10;
int main()
{
int k = i % j;
if (k != 0) abort();
return 0;
}